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Product Detailed Parameters
- Description：CMC 300MA 2LN 120 OHM SMD
- Series：ACM-E
- Mfr：TDK Corporation
- Package：Tape & Reel (TR)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：300mA
- DC Resistance (DCR) (Max)：450mOhm
- Voltage Rating - DC：50V
- Voltage Rating - AC：-
- Operating Temperature：-40°C ~ 85°C
- Ratings：-
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.079" L x 0.047" W (2.00mm x 1.20mm)
- Height (Max)：0.043" (1.10mm)
- Package / Case：Horizontal, 4 PC Pad
- Inductance @ Frequency：-
- Impedance @ Frequency：120 Ohms @ 100 MHz
- Qualification：-
- Grade：-
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Overview
The ACM2012E-121-2P-T00 is a two-line common mode filter from the TDK ACM series, designed for surface mount applications. It provides an impedance of 120 Ohms at 100 MHz with a maximum DC current rating of 300 mA and a maximum DC resistance of 450 mOhms. The component operates within a temperature range of -40°C to +85°C and utilizes a compact 0805 (2012 metric) package measuring 2.0 mm x 1.2 mm.
Feature Summary
- Delivers excellent common mode impedance and noise suppression in a compact case
- Maintains low differential mode impedance to minimize impact on high-speed signals
Applications
- Noise suppression for high-speed differential signal lines
- General signal line filtering in electronic devices
Procurement Notes
Verify the specific suffix 'T00' against official TDK documentation to confirm exact packaging and tape specifications. Ensure the 300 mA current rating aligns with circuit requirements. Confirm RoHS compliance status through the manufacturer's latest environmental declarations before integration into production designs.
Selection Notes
Select this component when space constraints require a 0805 footprint for common mode filtering. The 120 Ohm impedance at 100 MHz suits general signal line noise reduction. Verify that the 300 mA current handling capacity meets the operational load of the target differential pair without saturation.
Part Context
This part belongs to the TDK ACM series of common mode chokes, which are engineered for signal lines rather than power lines. The series offers various impedance values and current ratings within standardized surface mount packages to support diverse EMC requirements in consumer and industrial electronics.
Replacement Considerations
The ACM2012E-121-2P-T001 is a related variant within the same series. Verify if the 'T01' suffix indicates a difference in packaging or tolerance before substitution. Cross-reference electrical parameters such as DCR and impedance curves to ensure functional equivalence.
